Stove construction



Fd. 4; r193.'

A. s. KNAPP Er Ax.

STOVE CONSTRUCTION Filed/aug. 17, 19:3

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' 59, rial with a heating element groove in its upper Patented Feb. 4, 1936 UNITED STATES PATENT oFF/ICE I srovE CONSTRUCTION Andrew S. Knapp and Howard Smith, Belleville, Ill., assignors to Knapp-Monarch Company, Belleville, Ill., a corporation of Missouri Application August 17, 1933, SerlalNo. 685,583

l Claims. (Cl. 21g- 37) shield having a, floating central connection with a stove plate and spiral ribs formed in the surface of the shield, the edge of the shield being secured in such manner to a frame which supports the stove plate that the shield retains the stove plate relative to the frame, yet permits unequal. expansion and contractionof either the stove plate, the frame, or the shield without causing undue strain in theparts. 1

Still a further object is to provide a stove plate cover of inverted dish-shape having a central perforation connected to the stove plate by means of a washer overlying the perforation.

Still another object is to provide supporting` meanson a frame for a stove plate and a cover which has'ears on its peripheral edge adapted to coact with the frame to retain the stove plate thereagainst.

With these and other objects in view our invention consists "in the construction, arrangement and combination of the various parts of our device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in our claims, and illustrated in the accompanying drawing, in which:V

Figure 1 is a plan view of a stove construction embodying our invention. c

Figure 2 is a bottom plan view of the same.

Figure 3 is a sectional view on the line 3-3 .of Figure 1 showing the parts enlarged; andM Figure 4 is a sectional perspective view of a portion of the stove plate covering means.

On the accompanying drawing, we have used the reference numeral I0 to indicate generally a supporting frame. Legs ilare provided to retain it in spaced relation above a table top or the like.

The frame l0 has supporting ears I4 connected with or formed of the frame i0 and spaced below its upper surface. Spaces I8 occur between flanges i8 which extend downwardly and support Y the ears i4. A stove plate 20 formed of insulating mate-- surface is supported on the ears I4. -A cover plate A overlies the stove plate y2li and acts as a shield or protector against commodities heated on the stove spilling into a heating element 38 of the movev plate 20.

Heretofore it has been impractical to provide Sheet metal cover shields for stove plates because of their tendency to warp, especially when something is spilled on them. 'We however provide the Shield A with certain characteristics which will now be described whereby 'the shield may be made of sheet metal but the warping tendency is removed.

The upper surface of the shield is indicated at 22 and is flat for skillets or the like to rest on.

The cover means A has a peripheral down-turned flange 24 for protecting the peripheral edge of the stove plate 2li. V'

Ears 26 depend from the flange 24 and extend through the slots i6 and are then bent upwardly,

as indicated in Figure 3, so that they coact with the frame i0 to retain the cover means A and thereby the stove plate 20 against-upward movement with the stove plate supported on the ears I4.

The stove plate 20 is provided with a central depression 2l into which a flange 3B of the plate 22 loosely extends. The central perforation dened inthe cover A by the ilange I0 is covered by a washer 32 overlying the periphery of the perforation and held in position relative to the stove plate 2l by a bolt 34. A nut Il is associated with the bolt 24 to retain the washer` 32 against the cover means A.

The heating element 3B is connected by suitable wires 40 t'o an electric supply plug 42 and a control switch 44 in the ordinary manner.

In Figure 3, dotted lines'shcw an original position of the cover meansA and the washer 32. If something is spilled, as at 4C, on the cover means, there is contraction at this point tending to move parts of the cover means A from the dotted line position to the full line position. The ears 28 permit some movement of the periphery of the plate A, while the frictional or floating engagement of the washer I2 with the plateA permits it to move at the center of the stove plate of non-warpability very much desired in connec' tion with an appliance of the general character illustrated.

The protector A can be made inexpensively since it can be formed out of sheet metal and is 56 y therefore desirable in connection withA an inexpensive appliance.

Some changes mayI be made in the-construction and arrangement of the parts of our device without departing from the real 'spirit and purpose of our invention, and it is our intention to cover by our claims, any modied forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

We claim as our invention:

1. In a stove construction, a stove plate, a`

,under the edge of said frame surrounding the opening therein to retain said stove plate against said supporting means. 4

2. In a stove construction, a stove plate, a frame having a socket of substantially larger diameter than said stove plate therein for said stove plate, the bottom of said socket constituting supporting means for said stove plate to support it relative to the frame and covering means for said stove plate comprising an inverted dish-- shaped shield having a central perforation and a peripheral edge in the space between the periphery of said stbve plate and said opening, a washer overlying the edge of said shield surrounding said perforation, means for securing said washer to said stove plate and ears on the peripheral edge of the shield engaging under the edge of said frame surrounding the opening therein to retain said shield against upward movement relative to said frame.

3. In a stove construction, a stove plate, a frame having a socket therein for said stove plate, the bottom of said socket constituting supporting means for said stove platel to support it relative to the frame 'and covering means for said stove plate comprising an inverted dish-shaped shield having a central perforation, a washer overlying the edge of said shield surrounding said perforation, means for securing said Washer to said stove plate, said perforation being larger -than said4 means whereby to permit shifting of the perforation relative to the washer and said means and means to retain said shield and thereby said stove plate against' upward movement relative to said frame.

A`4. In a stove construction, a stove plate, a frame having an opening thereinA for said stove plate and supporting means underlying said stove plate to support it relative to the frame and covering means for said stove plate comprising an inverted dish-shaped metal shield having a central perforation, a. washer overlying the edge of said shield surrounding said perforation, means for securing said washer tol said stove plate and earsv on the. peripheral edge of said shield bent under the edge of said frame surrounding the opening therein to retain said stove plate against upward movement relative to said frame.

5. In the stove construction, a stove plate, a frame having an opening thereinv for said stove plate and supporting means underlying said stove plateto support it relative to' the frame and covering means for said stove plate comprising an inverted dish-shaped metal shield and ears on the peripheral edge of said shield bent under the l frame having an opening therein for said stove plate and supporting means underlying said stove plate to support it relative to the frame and covering means for said stove plate comprising an inverted dish-shaped metal shield having a central perforation, a slightly cone shaped washer overlying the edge of said shieldsurrounding said perforation and means forsecuring said washer to said stove plate.

'7. In a stove construction, a stove plate, a frame having an opening therein for said stove plate and supporting means to supportsaid stove plate relative to the frame and covering means for said stove plate comprising an inverted dishshaped metal shield haxng spiral ribs thereon and projections on the peripheral edge of said shield coacting with said frame to retain said frame, saidxstove plate and said shield assembled, said projections being of substantial lateral dimension and engaging said` edge intermediate their ends to permit movement thereof relative to said edge as caused by expansion and con- 'traction of said shield.

8. In a stove construction, a stove plate, a frame having an opening therein for said stove plate and supporting means underlying said stove plate to support it relative to the frame and covering means for said stove platecomprising an inverted dish-shaped shield having spirally arranged ribs and a central perforation, a washer overlying the edge of said shield surrounding said an inverted dish-shaped metal shield having a".

central perforation, a dished washer overlying the edge of said shield surrounding saidperforation, means for securing said washer to said stoveplatc and ears on the peripheral edge of said shield bent under the edge of said frame surrounding the opening therein to retain said stove plate against said supporting means.

10. In a stove construction, a stove plate, a frame having means underlying said stove plate to support it and covering means for said stove plate comprising a shield having a central down-turned flange, said stove plate having a central depression to receive said iiange and means for connecting the periphery of said shield to said frame to retain said stove plate against said supporting Y means, said means comprising projections on said shield engaging said frame and capable of sliding movement relative thereto toward and away' from the center of the stove plate.

l1. In a stove ,construction, a stove platea.

vframe having means underlying said stove plate tosupport it and covering means forsaid stove plate comprising a shield having a central downturned flange, said stove plate having a central 2,029,573 of larger diameter than said ange its central portion in said depression and its periphery overlying said stove plate, means-,for securing said Washer thereto and means for connectingthe periphery of said shield to said frame to retain said stove plate against said supporting means.

12. In a. stove construction, a stove plate, a frame having an opening therein for said stove plate and supporting means underlying said stove plate to support it relative to the frame and covering means for said stove plate comprising an inverted dish-shaped metal shield and ears on the peripheral edge of said shield bent under the edge of said frame surrounding the opening therein to retain said stove plate against said supporting means.

13. In a stove construction, a stove plate, a frame having asocket therein for said stove plate, the bottom of said socket constituting supporting means for said stove plate to support it relative to the frame andcovering means for said stove plate comprising an inverted dish-shaped shield having .a centrall perforation, a washer overlying the edge of said -shield'sun'ounding said perforation, means for securing said washer to said stove plate, said'perforation being larger than said means whereby to permit shifting of the'perforation relative to the washer and' said means and ears on the peripheral edge of said shield engaging with the socket in said frame to retain said stove plate against upward movement relative to the socket.

14. In a stove construction, a stove plate, a frame having an opening therein for saidstove plate and supporting means underlying said stove plate te support it relative to the frame and covering means for said stove plate comprising an inverted dish-shaped shield having spirally arranged ribs and a central perforationya washer overlying the edge of said shield surrounding said perforation, means for securing said washer to said stove plate and means to retain said stove plate against said supporting means.

15. In a stove construction, a stove plate, av

frame having means overlying said stove plate to support it and covering means for said stove plate comprising a shield. having a central opening, said stove plate having a central depression underying said opening, a washer of larger diameter than 20 said opening having its central opening in said depression and its periphery overlying the edge of said stove plate terminating at said opening, means for securing said washer thereto and means for connecting the periphery of said shield to said frame to retain said stove plate against'said supporting means.

r ANDREW S. mAPP.

HOWARD SMITH. 

